JavaScript Geo Visualization and Analysis Library

Usage no npm install needed!

<script type="module">
  import geojs from '';



Build Status DOI npm published version Gitter

GeoJS is intended to bridge the gap between GIS,Scientific Visualization, and Infovis. GeoJS is more than just a GIS library as users can create scientific plots such as vector and contour and can embed infovis plots using D3.js. GeoJS aims for high-performance visualization and interactive data exploration of scientific and geospatial location aware datasets.

GeoJS supports features such as Point, Line, Polygon, and advanced features such as Pixelmap, Contour, Heatmap, and Choropleth.

GeoJS can read and render data from GeoJSON files, and WMS servers. Additional features includes Annotations, Legends, Animated Transitions, and Widgets.

GeoJS can also be used for visualizing medical imagery. See Digital Slide Archive for an example.


For live examples visit

Historical hurricane data Visualization in GeoJS


You can find more information on GeoJS installation and usage in our Documentation.

There are some additional resources:


We would love to get your feedback and bug reports. Please use GitHub issues.

Get Involved

We are open for collaboration. Kitware has been doing open source development for the last 20 year and understands and appreciates what it takes to develop open source software.

Related Efforts

GeoJS has been used in various Girder girder based applications such as Dansfield-App and DIVE.